Stop motion for gill boxes



Nov. 28, 1933.

w. J. SCOTT 1,937,208

STOP MOTION FOR GILL BOXES Filed May 23, 1931 2 Sheets-Sheet 1 O IN V EN T 0R.

A TTORNEYS.

Nov. 28, 1933. w. J. SCOTT STOP MOTION FOR GILL BOXES Filed May 25, 1931 2 Sheets-Sheet 2 IN V EN TOR. Jfdaf/ fl Lu/ mu ATTORNEYS.

Patented Nov. 28, 1923 l UNITED srArEs PATENT OFFICE 1 1,937,208 I j sror MOTIoN FOR GILL Boxes alter J. Scott, Woonsocket, 11.1. i 7 .Application May 23, 1931. Serial No. 539,455

" 8 claim '(ol. 19-1 This invention relates to a drawing'frame and has for its object toiprovide an electrically operating stop device for the frame;

I A further object of the invention is to so locate i -the stop device that any material adhering to one of the moving parts caused by breaking down' of the sliver will causethe machine to stop and prevent injury 'to the machine. 4 I Astill further object, of the invention is the 19 provision of means tostop the machine should the sliver start to collect and build up upon the traveling apron and thus prevent damage to the apron and needles of the gill box. 7 With these and other objects and advantageous ll --features in view, the invention consists of a novel arrangement of parts more fully disclosed in the detailed description following, in conjunction with the accompanying drawings, and more particularly set forth in the appended claims.

Fig. 1 is a top plan view of a portion of a drawing frame.

Fig. 2 is a side elevation thereof showing my stop device in position. Fig. 3 is a larger fragmental perspective View -of the contact portion of the stop device mounted adjacent the traveling apron.

Fig. 4 is a sectional view through the contact members. 1 ,4 Fig. 5 is a diagrammatic view showing the electrical connections for the device.

It is found in practice in the operation of'gill boxes and other machines of this character that where a traveling apron is provided about one of the draft rolls that occasionally the sliver breaks down and adheres to the apron collecting thereon which not only produces poor work but if allowed to accumulate will often cause breaking of the needles and damage to the apron both of which are expensive to replace and in order to prevent such undesirable results I have pro- .vided a suitable mechanism located adjacent the traveling apron whichwill engage'any material adhering to the apron, and close'a contact for energizing an electric circuitto cause the machine to stop; and the following is a detailed description of the ,present'embodime'nt of this invention illustrating the preferred means by which these advantageous results may be accom- 'plished. i

I With reference to the drawings, 10 designates the frame of the machine in which there is mounted the rear pair of draft rolls 11 and a front pair of draft rolls 12 and 13.

" roll 15 in a customary manner. The draft rolls An apron '14 travels about the lower roll 13 and an' idler 5 are driven from a suitable source of power by a belt (not shown) engaging tight pulley 16 to transmit power to the rolls through drivingshaft 18 and suitable train of gears illustrated in Fig. l or allowed to idle on loose pulley 17.

The sliver is drawn from a suitable source of supply through the first pair of draft rolls 11, second draft rolls 12 and 13, beneath the bar 19 through the condenser'horn 20 and deposited by means' of rolls 21 into! the receivingcan 22. The'needl'es 23 and their bars 24 are illustrated and have their customary action in the machine.

In order to stop the machine should material collect upon apron 14 I have mounted a bar 25 on brackets 26 and adjustable as to position through 7 slot connections 27 and 28 adjacent the surface of apron 14. Upon this bar there is mounted a plurality of feeler fingers 29 which are insulated from the bar 25 by means of suitable washers 30 and to space the mounting 31 therefrom; the bar bar 32 while they are prevented from being raised to an excessive extent to distort the members by, means of the stop bar 34. Thus should theslivers split or break and start to travel along and build up, upon apron 14 the feeler members 29 would be engaged to move-the contact members 32 and 33 into engagement to energize theelectrical circuit diagrammatically shown in Fig. 5 to stop the machine.

Referring to Fig. 5.the electrical energy received through transformer 35 is transmitted to solenoid 36 through lead 3'? and then through the shipper the shipper lever 38 and lead 39 to the contact point 33 whereby upon closing of the contacts 32 and 33 the solenoid is energized to throw off the latch 40 and permit spring 41 to move the shipper lever and consequently the shipper rod 42 which through fork 43.,throws the belt (not shown) from the tight pulley 16 to the loose pulley 17 to stop the machine. I

The foregoing description is directed solely to- 1 wards, the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only pended claims.

I claim:

1. In a gill box, a traveling apron having a portion moving in a vertical plane, stop means including ,a contact bar, aresilient feeler spaced 110 v by the terms of the apfrom said bar and in close adjacency to the surface of said apron and an electric circuit energized by engagement of said bar and feeler whereby material adhering to the surface of said apron will cause said engagement and stop the machine.

2. In a gill box, draft rolls, an apron traveling over one of said rolls, stop means including a contact bar, a plurality of feeler fingers spaced. from said bar and in close adjacency to the surface of said apron and an electric circuit energized by engagement of said bar and feeler finger whereby material adhering to the surface of said apron will cause said engagement and stop the machine.

3. In a gill box, draft rolls, an apron traveling over one of said rolls, stop means including a contact bar, a plurality of resilient feeler fingers spaced from said bar and in close adjacency to the surface of said apron and an electric circuit energized by engagement of said bar and feeler fingers whereby 'material adhering to the surface of said apron will cause said engagement and stop the machine.

4. In agill box, a traveling apron, stop means including a resilient feeler locatedadjacent the surface of said apron and spaced therefrom and responsive to adhesion of material to said apron for stopping the machine.

5. In a gill box, a traveling apron having a portion moving in a vertical plane, stop means including a feeler located adjacent the vertical surface of said apron and responsive to adhesion of material to said apron for stopping the machine.

6. In a gill box, a traveling apron having a portion moving in a vertical plane, stop means including a feeler located in a plane at an angle to said vertical plane and adjacent the vertical surface of said apron but spaced therefrom, said feeler being responsive to adhesion of material to said apron for stopping the machine.

'7. In a gill box, a pair of spaced rolls, a traveling apron about said rolls, stop means including a feeler located intermediate said rolls and adjacent the surface of said apron extending from one roll to the other and in a plane at an angle to said traveling apron, said feeler being responsive to adhesion of material to said apron for stopping the machine. 

